Volkswagen Passat 1995 Official Factory Repair Manual page 1539

Diagnostic mode, selecting
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
If the specified value is exceeded:
Oxygen sensor not ready for operation
Oxygen sensor heater faulty:
- Check oxygen sensor heater for Oxygen Sensor
(O2S) before Three Way Catalytic Converter
(TWC) Page 24-25
- Check oxygen sensor heater for Oxygen Sensor
(O2S) behind Three Way Catalytic Converter
(TWC) Page 24-28
Short circuit to B+ or open circuit in wiring in
oxygen sensor or in wire:
- Check Oxygen Sensor (O2S) and oxygen
sensor control before Three Way Catalytic
Converter (TWC)
- Check Oxygen Sensor (O2S) and oxygen
sensor control behind Three Way Catalytic
Converter (TWC)
Page 19 of 35
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Page 24-87 .
Page 24-92 .
ST-32
6/12/2004